The first step in any new weaving project, after planning and securing the yarn, is winding the warp.
The warp is the yarn that serves as the basis for weaving. It is put on a loom (the loom is dressed) and only after that the fabric creation can start.
As I have the sectional warp beam loom, I use bobbins to wind my warp. Here you see the tension box with the counter and bobbin stand.